Manufacture of shoes



March 8, 1927. l 1,620,018

H.` D. HAMILTON MANUFACTURE, oF SHOES Filed Sept. 4. 1920 \\i Fig. 9 Figs l verse directions, and `byl forming ythe treadhlthe Patented Mar. 8, 1927.

UNirEnsrairissrrar Nlr. Ao FEiG-E.

HARRY n.. i HAMILTON., or. w1ist'rfrngor,i,nAssAoHUsErTs` Asslsivon To uivzurnn SHOE MACHINERY-CORPORATION..oF mirnnsoiv, NnWaERsEY'; ApcRPQR'ATION OF.

MANurac'runnk or siaons.v

Application filed September A cement and atlthe Sametime-twill ensurea..section.the invention .asL

closeand tight joint betweenk thetread-mein.. i ber and thebase orsection to'whichitis at, tached. As shown, this is-accomplished.byn` providingI the base section `with a concavely, curved surface, preferably but not necessa-M rily concave'in both lo'ngitudi-naland transy member witha' E plane attaching surface,or

at least witha11'attacliing-surtace -of sucl1..drawing, the heel base l0 form that, without deformation, it-wi-llcontact with the concavity ot the base section only at` the margin thcreoiw` #Thei'igiwhentthe tread member is secured to-the base-section, A. as fo1eXa11n; le,'by nailing,the` tread sectionm may be deformedso-"thatitsfattachingsunface, or' atleast an4 extendedarea1 thereof-ade` jacent to the peripheryo't the heel, -will be: brought n into contact withA Vand conformity. to the .concavesuraceof the -base-section-,. the resilien'ccot 4the tread f member ensurin 0' a tight-.joint between the two parts.= Y

In its diterent aspects the invention: oom. prises a' method ot attach-ing resilient 'tread f l members to concavev base members; a1esil.\ ient tread member torn-ied, priorto its attachment, with a median portion-A thicker .1 l than itsniarginalportions,or atleast thicker/.i

than its lateral, marginal portions, a-ncl..illus. i1

tratedas having, prior to its attachment, a plane attaching surface-a1id^ af'convex.- treadl surface,A so thatwhen` attacl'ledfit rn-ayi be deformed to ensure a tight joint between the base secti on and the ftread `n-ieinben and to present 'a' plane treadsurface baseiisection pi ovided with Aa concavely curved surface t'or thereceptionand-deformationv of they tread n'iember; and a heel built up of aj-base, section and a tread member #assembled `.as hereinbefore" described.

TVith the` foregoingl andl -otheri )objects in view, the inventiony willmnow Abe ldescribed with reference to the accompanyi-ngldrawk1 ings which show 'several illustrative lembodi-i ments oit the -heelandl heel elements tihereot, and pointed out in the subjoined cllaims.

Figs. "l, 2 and 3 arel ci'osssecticmal.views.,

.face of suchtorm that it Jwilhcontarct withl lines.

.will present a plane surface as i -,--1920. .Serial No. 408,267..` i

showing ,ditferentspecies of heels constructed in accordancehwith the, presentlinvention.

Fig. i is a `longitudinal section of'the speciesofFig-2. i ...Figa .5 -is a ,longitudinal section of still another species.,

Figs.,n 6 ,and 7, illustrate, y lolligitudinalheels.

Figa Sis a longitudinal sectional view of the treadinember ofFig. Z prior to, its applicationtota heel vbase section.l Y'

Fig. 9 is a cross section showing one way whiclrthe concavity of thel'surtacefof base section maybe Aproduced. 4, 1"" As shownlin Figs., 1,2, tand 5 of the ,is commited .transl v.also lcngitudrally.

as shown in Fig. 4, thougliit iswithin the.,1v

to omit `the longituspirit ,of the inventicrl.; dinal concavity and to lso yshape the heel section.tliat .the linelrepresentingtin cross section` .the surface. thereottq which the tread 4membenisto bed `attached,will appear straightzas indicated i memberi 120i rubber orother suitable re'- silient.` material. is provided, prior ,to its at?.

.apr-Tied ,telers ,vin, Fig.l 5,4. yThe tread ,a

lltachment., with. a preferablylplane attaching'` surfaceilei, orE at least with Aan'v4 attaching sur? l the nnirginot the concave surfaces, of 4theA base section around. the lcontour; surtacefoit the median portion thereoilml In Figs. 1j tof inclusive the shape of the tread member priortoats attachmentvis,indicated in broken rlheitread.member ,is secured yto `the base lsection l0 by suitable means indicated ,in

Fig. Zas .nailsll passinglthroughwashers =l7 einbeddechin the ,tread member land is .held in deformed condition by theselsecuring means with. its attaching,surface contacting torni that,.,.whe.n attached fand deformed, it

18 in Figs. 2, l and'` 5,

though it should be understoodmthat lthis is .not altogetlieif' the heel and I.will be spaced the'refijoml atv4 A indicatedI at essential since the advantages lot the invenw' M011` .may `be obtained to a .SubSt-stlil sete?? ino memberamay havehits treadsnrtace, prior f .its attachmentv to the base section, lot such by the application to the concave surface of theV base section of a Vtread member formed prior to its attachment with parallel plane surfaces. When such a tread member is used, it Will,'after the deformation caused by its attachment, present a concave tread surface which will, under some circumstances, act in the manner of a. suction cup to prevent slipping.

In Fig. 3 the base section is indicated as provided with a corrugated surface forming a plurality of concave portions `indicated at 20. rhe tread member l2 is applied thereto in the manner already described.

Figs. 6 and 7 show the invention as applied to a Louis heel. As indicated in dotted lines the tread member is ofvsuch forni as after its attachment to complete the outline of the heel. As shown in Fig. 6, the outline of the base section is parallel to the plane of the outline of the tread member, whereas in the construction of Fig. 7 the tread member 22 is formed thicker towards its rear than at its forward portion, being, prior to its application to the heel, substantially of the cross-section shown in Fig. 8, this being for the purpose-'of increasing the length of life of the tread member by the provision of an additional thickness of rubber at the portion of greatest wear.

. The concaving of the base sections may be performed in any suitable manner. f a base section is of leather or leather-board, it may be molded to the desired form dan ing the compression of the heel member when the usual concavely curved attaching face is formed, or the surfaces may be shaped by gouging. If desired, the concave etl'ect may be produced by applying to a plane surface of the base section a thin strip of material, of the form ordinarily used for a rand, as shown at 24 in Fig. 9. Vhere the invention is applied to a wood heel, it will be preferable to form the concavity by cutting away a portion of the wood of the heel.

It may be noted here that in the drawing the depth of the concave portion is exaggerated in order more the same.

lVhen the tread member is secured to the base section, it is deformed to bring the attaching surface of the tread member into contact with the concave outer surface of the base sect-ion and the Vresilience of the tread member which causes it to resist deformation holds the edge of the tread member closely in contact with the base section and thus insures a tight joint between the two around the contour surface of the heel without theV use of cement.

Having described my' invention, claim as new and desire to secure by Let ters Patent of the United States is l. A shoe heel comprising a base section clearly to illustrate what I Leaders having` a concavely curved surface and a resilient tread member secured thereto and deformed to bring its attaching surface into substantial conformity with the said concaved surface Iof the base section.

2. A shoe heel comprising a base section having a concavely curved surface and a resilient tread member secured thereto in such manner that its attaching surface contacts with the concave surface of the base section over an extended area adjacent to the margin thereof. Y

3. A shoe heel comprising a base section having a surface concavely curved in bot-h longitudinal and transverse directions and a resilient tread member secured thereto in such manner that its attaching surface contacts with the concave surface of the base section over an extended area adjacent to the periphery thereof.

l. A shoe heel comprising a base section having a concavely curved surface and a resilient tread member attached thereto, said tread member being thicker at its median portion than at itslateral marginal portions and being held in deformed condition to present a substantially plane tread surface and to insure a tight marginal joint between the base section and the tread member.

5. A shoe heel comprising a base section having a concavely curved surface, a resilient tread member, and a plurality of metallic fastenings securing the tread member `to the base section an( holding the tread member with an extended area of its attaching surface adjacent to its margin deformed to conform to and contact with the concave surface of the base section adjacent to the margin thereof.

6. A heel base section having a concavely curved surface for the reception of a resilient tread member.

7. A heel base section having a surface curved concavely both longitudinally and transversely for the reception of a resilient tread member.

8. A tread member of resilient material having, prior to its attachment to a shoe, a plane attaching surface and a convex tread surface.

llU

9. A tread member of resilient material i having, prior to its attachment to a shoe, a plane attaching surface, and a tread surface convex in both longitudinal and transverse directions.

10. That improvement in the manufacture of slices which comprises applying to a heel base portion having a concavely curved surface a resilient tread member having a substantially plane attaching surface and fastening said tread member to said base portion in such manner that the tread member is deformed and its attaching surface brought substantially into conformity with the concave surface of said base portion to insure a tight joint between the two parts.

l1. That improvement in the manufacture of shoes which comprises forming a heel base portion of a shoe with a concave surface, applying to said concave base portion a resilient tread member having a plane attaching portion, and nailing said tread member to said base portion so as to deform said tread member to bring its attaching surface into substantial conformity with the concave surface of said base portion to insure a tight joint between the two parts without the use of cement.

12. That improvement in the manufacture of shoes which comprises forming a heel base portion of a shoe with a concave surface, applying to said concave base portion a resilient tread member having an attaching surface of such form as to contact with points at the periphery of said concave portion and to be spaced from theI median part of said concave portion, and securing said tread member to said base portion in such manner that the tread member is deformed so that its attaching surface contacts with the concaved surface of said base member over an extended area adjacent to the periphery thereof.

13. That improvement in the manufacture of shoes which comprises forming a heel base portion of a shoe with a concave surface, applying to said concave base portion a resilient tread member having a plane attaching surface, and securing said tread member to said base portion in such manner that the tread member is deformed so that its attaching surface contacts with the concave surface ofsaid base member to insure a tight joint between the two parts.

14. A shoe heel comprising a base section having both its inner and outer attaching faces curved and a resilient tread section, bothvattached to a shoe, the attached tread section presenting a substantially fiat tread face and its inner, attaching` face conforming substantially to the outer, curved, attaching face of the base section.

In testimony whereof I have signed my name to this specification.

HARRY D. HAMILTON.

CERTFIGATE F GORRECTEN.

Paten No. 1,620,0l8. Granted Maren 8, 1927, to

HARRY D. HAMHLTN.

l is hereby eerefed zhot error appears in the printed sneeiioaion of the above numbered patent requiring eonfeeon ao foowe: Page 2, Eines 69 and 70, claim 1, for the word "eoneaveo" read "enrveo"; and moi", the onid Letters Poteau should be rend wtn this correction therein time ehe some may conform to the record of the ease in the Paen iee. Signed end sealed hio 4th dey of ctober, A. D.. E927.

M. J. Moore, Seal.

Acting Gonnnieooner of Patents. 

